Improvement in door-panels



L. W. KIMBALL, OF PITTSFORD, VERMONT.

Letters Patent No. 80,972, dated August 11, 1868.

IMPROVEMENT IN DOOR-PANELS.

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Be it known that I, L. W. KIMBALL, of Pittst'ord, in the countyof Rutland, and State of Vermont, have I invented certain new and useful Improvements in Door-Panels; and I do hereby declare that the following is a full and complete description of the same, reference being bad to the accompanying drawings, making part of this specification, in which 4 Figure is a view of the door'and panel.

Figurei is a view of-the panel detached.

Figure 3 is a vertical section in the direction of the line :v 1.

Like letters refer to like parts in the different views.

My improvement consists in forming door-panels, &c., of paper board, which is very light, durable, and inexpensive. It is constructed in the following. manner:

A represents the panel, of which fig. 3 is a section view. "It is made of two thicknesses of paper board, formed in the shape shown in fig. 3, thus leaving the chamber B between them, the ends being joined together and forming the tenon of the panel. In this chamber 13, is arranged the paper board 0, in the manner shown, or it may be placed at angles, or in any suitable manner, for the purpose of bracing and supporting the two layersof board 7;.

The frame of the door is plowed out in the ordinary way to receive the panel, thus forming aldurable. light, and cheap door, and is the same inappearance as the wood panels, when painted in the sameway.

The wallsof a room may also be constructed in the same manner, and the chamber between"t'he paper boards will prevent the passage of heat or cold and dampness, as freely as the wall in ordinary use. thus, in

cool weather, constituting a warm room, and in warm weather a coolroom.

The panels may be eonstructed in any'form or configuration desired.

What I claim as myimprovement, and desire .to secure by Letters Patent, is-

The pauel A, constructed with side pieces I) and chambers B, with braces, arranged substantially as and for thcpurpose described. I

. L. W., KIMBALL.

Witnesses:

D. P. PEABODY,

R. N. ALLEN. 

